Stepper motor: X08
Pin assignment
Pin  | Function  | Symbol  | Core color 1)  | 
|---|---|---|---|
1  | Motor winding A  | A1  | brown  | 
2  | A2  | white  | |
3  | Motor winding B  | B1  | blue  | 
4  | B2  | black  | |
5  | Functional earth  | FE  | grey  | 
1) The core colors apply to M12 cables from Beckhoff: ZK2000-5xxx, ZK2000-6xxx, ZK2000-7xxx
Connection examples
In unipolar stepper motors only half of each winding is energized.